Balancing of the weight of ropes



Oct. 16, 1923.

i l.. THALLMAYER .BALANCING OF THE WEIGHT 0F RO-PES Filed NOV. 23. 1921movement u rope B is shown by a heavy line.

Patented oct. 1e, 1923.`

tirarse eremo Price. .e

LUDWIG THALLMAYER, or AisEntrar-criantor'r-ENBUEG, GERMANY, AssrGNoE Tov vsIEivrENs-sormCKERTWERKE GEsELLsCHArrMpIT BESCHENKTER HnE'rUNG, 0E

siEivrENss'rAnr, NEAR BERLIN, GERMANY..

BALANCING oE THE WEIGHT or norEs. n

' Application mea November 2e, 1921. seriai No. 517,411.

To @ZZ whom t may concern.'

Be it known that I, LUDwrG THALLMAYER, a citizen of the AustrianRepublic, residing at Berlin-Charlottenburg, (Iermany, have inventedcertain new and useful Improvements in and Relating to the BalancingV ofthe Weight of Ropes, `of which the following is a specification.

It is not possible tosuspend the Vbalance rope for the cages in the caseof adjustable winding rope driving means, for instance, when the windingrope is lengthened, the balance rope will trail in the sump, or whenshortened will sway to and fro in the shaft and damage it. ThereforeIthe balance rope has hitherto been operated by a separate drum or thelike on the axle of the winding drum. This drum as well must beadjustable, so that after the adjustment of the winding drum the ropebalance can be again rectified, while, for obtaining a complete balance,only half the movement must be made that is made for adjustment, as thatpart of the balance rope which is deducted from one side is'added to theother.

According to the invention this adjusting is effected automatically byexactly the right amount, by the operating means for the bala-nce weightwhen yadjusting making half the movement as during working.

In the accompanyingk drawings I have shown in diagrammatic fashion oneof the forms in which my invention may be reduced to practice. Y

Referring to these drawings, balancing t is suspended by auxiliary ropeb which passes over a sheave 3 loosely mounted on main driving shaft t,and located between-the fixed winding drum' 1 and the adjustableVwinding drum 2. It is operated by these drums through a differentialgear 17. The hoisting ropes with their cages are shown at 18, '19 and20, 21 respectively.

So long as the adjustable or loose drum 2 is coupled with drum1,permanently xed on the shaft-Which coupling is accomplished by meansof coupling 5-the two small bevel wheels 17a of differential gear 17,which arek mounted on sheave 3 are prevented from rotating on account ofbeing in mesh with the two large differential gear wheels 17b of whichone is fixed on each these drums.

infr

of the drums 1 and 2. f Thus, `sheave 3 be.- comes tightly coupled` withthe two drums 1 and 2 and thusrotates in unison with If on the otherhand, loose drum; 2 is uncoupled from fixed' drum 1, yfor the purpose ofchanging the frange of hoistg, and if now, drum 1 is revolved to settlie'rmain cages 20 and`21 for the new hoisting distance, and if at theSametime, as

is'customary in such devices, the loose drum 21s held fast, the twosmall bevel wheels 17a roll off on the two larger bevel wheels 17b ofthe dii'erential gear. Thus sheave 3 revolves only at half the speed atwhich drum 1 revolves. Therefore, owing to this arrangement each angularshifting of the two hoisting drums against eachi other causes the sheave3 to be only shifted one half the angular distance. .By these means thebalance rope B is shifted such that it will again completely balance theweights of the two hoisting ropes in any hoisting position.

The Ybalance for the weight of the hoisting rope can of course beeffected with balancing ro-pes whose weight per unit length rvaries withthe length of the rope, for instance, where, in the case of greatdepths, winding ropes of similar character arev used. All rope drivingmeans usually employed for the winding. ropes can be used as drivingmeans for the balance weight, so that, when the driving means for thewinding rope are adjusted any'variations in the balance of the weight ofthe rope can be effected.

To the ends of the auxiliary rope b, by

vwhich the balance rope B is suspended, conveying baskets 22 can beattached, for instance, for the conveyance of workmen, tools, pittimbers and the like, both during the winding of material or when thedriving means for the winding rope are stationary. f

What I claim is 1. A winding rope arrangement for hoist-A driving meansfor said balance rope, said latter driving means being suitably gearedto both of said winding rope driving means to correspondingly adjust thebalancing ef-` feet of said balance rope during the relative adjustmentof the driving means for the ,jingy machinery, comprising two Windingropes, drivingjmeans therefor capable of Vrelative- 'adjustment, abalance rope and driving means for said balance rope, said latterdriving means having a differential gear connection With'both of saidrope driving means to correspondinglv adjust the balancing effect ofsaid balance rope during the relative adjustment of the driving meansfor the Winding ropes.

3. A Winding rope .arrangement for hoisting machinery, comprising twoWinding ropes, driving means therefor capable of relative adjustment, abalance rope and driving means for said balance rope, said latter`driving means having a differential gear connection with both of saidrope driving means to correspondingly adjust the balancing effect ofsaid balance rope during the relative adjust-ment of the driving means`for the Winding ropes, the gearing ratio of said differential gearbeing suitably chosen so that at every position of the Winding ropedriving means relative to each other, a complete Vbalance of the Weightof the Winding rope-'is produced.

4. A Winding rope arrangement for hoist ing machinery, comprising twoWinding ropes,v driving means therefor capable of relative adjustment, abalance rope and driving means for said balance rope, said latterdriving means being suitably geared to both of said Winding rope drivingmeans to correspondingly adjust the balancing effeet of said balancerope during the relative adjustment of the driving means for the Windingropes, and baskets, for con veying Workmen and appliances, attached tothe ends of the balance rope for the purpose set `forth.

lntestimony whereof I afl-ix my signature.

i LUDVIG THALLMAYER.

